Czech patent number CZ 303 062 titled “Cylinder lock with a rotating key”. The patent protects the very principle of our cylinder, i. e. a set of successive distance washers, in which the discs are individually placed.
Czech patent number CZ 302 949 titled “Coding mechanism for a cylinder lock with a rotating key and a semi-finished form of the rotating key”. The patent protects the shape of the key profile and the semi-finished product of the key.
Czech patent number CZ 303 063 titled “Cylinder lock regulator”. The patent protects the technical solution of the cylinder part that ensures that until the key is fully inserted into the key hole it is not possible to turn the key in the lock.